Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.
21st July 1925: ‘Monkey Trial’ finds John T. Scopes guilty of teaching evolution
21st July 2018
18th January 1871: Wilhelm I declared German Emperor
18th January 2020
16th January 27 BCE: Octavian becomes Augustus, Roman Emperor
16th January 2020
15th January 1919: Great Molasses Flood kills 21 people in Boston
15th January 2020
11th November 1918: WW1 Armistice of Compiègne is signed
11th November 2018
1st September 1939: Nazi Germany invades Poland
1st September 2018